I made some more progress on the cowl last night. I began by working on the right side and at the front. I drill a 1/8" pointed drill bit. Once I got through the fiberglass of the top cowl side, I switched to the drill bit for tapping a 6-32 bolt. I used this to drill through the fiberglass lip and the plywood back pieces.
I then just drove in a 6-32 bolt to hold the pieces together. The bolt with thread the plywood and give you a reasonable hold. Strong enough to easily work with but I wouldn't fly it that way.
I then taped the cowl to the fuse to see how it would fit. Very little adjustment is needed.
I also picked up some more wood yesterday from the LHS. I got some 1/4"x3/8" spruce for support structures (I.E. receiver, batteries, etc.), some 3/32" balsa since the sheeting that came with it was damaged in moving, and a 1/4" lite ply plate for doing something with tuned pipe exits.
I'm not thinking about doing a DA 150 on JTEC HP-90 tuned pipes. I'm not going to build a pipe tunnel but I will remove the spruce stringers and make a custom plate for air exit if I go pipes. Will see when I can have the money to buy the pipes. Gotta get through the summer first.





